Synthesis of multidimensional signal constellations with quadrature amplitude modulation

被引:0
|
作者
Bakulin, M. G. [1 ]
Grigor'ev, V. A. [2 ]
Kreindelin, V. B. [3 ]
Lagutenko, I. O. [2 ]
机构
[1] OOO Radar Technol 2T, Moscow 125009, Russia
[2] St Petersburg Natl Res Univ Informat Technol Mech, St Petersburg 197101, Russia
[3] Moscow Tech Univ Commun & Informat, Moscow 111024, Russia
关键词
FASTER; BINARY;
D O I
10.1134/S1064226917040015
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The multidimensional constellations of quadrature amplitude modulation (QAM) signals are proposed. Each symbol incorporates the blocks of QAM signals not only carrying the same information content but also composed of the symbols of different higher order constellations (in contrast to the simple 1D modulation where each QAM symbol carries its intrinsic information). The multidimensional constellations of QAM signals are synthesized using the optimization algorithm based on the criteria for enhancing the energy or spectral efficiency of digital data transmission systems. The characteristics of interference immunity of the proposed signals are estimated with the help of analytical calculations and simulation. The relationships making it possible to consider faster-than-Nyquist signaling technology as a particular case of the multidimensional constellations of QAM signals are derived. It is demonstrated that the obtained signals provide an energy gain with respect to traditional 1D signals, in particular, ensure the operability at SNRs smaller than those inherent to binary phase-shift keying signals.
引用
收藏
页码:371 / 379
页数:9
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